package com.wzy.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wzy.reggie.common.R;
import com.wzy.reggie.entity.User;
import com.wzy.reggie.service.UserService;
import com.wzy.reggie.utils.RandomName;
import com.wzy.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送短信验证码
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();
        //生吃随机的4位验证码
        if(!StringUtils.isEmpty(phone)){
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code:{}",code);
            //调用阿里云的短信验证服务api完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);
            //需要将生成的短信验证吗保存到session中
            //session.setAttribute(phone,code);

            //将生成的验证码缓存到redis中，并设置过期时间为五分钟，表示验证码五分钟有效
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return R.success("手机验证码发送成功");
        }
        return R.error("手机验证码发送失败");

    }
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map,HttpSession session){
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        // 从session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);
        //从redis中获取验证码
        Object codeInRedis = redisTemplate.opsForValue().get(phone);
        //进行验证码的比对(页面提交的验证码和session中的验证码对比)
        if(codeInRedis!=null&&codeInRedis.equals(code)){
            //如果能够对比成功 说明登录成功

            //判断当前手机号对应的用户是否是新用户,如果是新用户就自动完成注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if(user == null){
                //自动注册
               user = new User();
               user.setPhone(phone);
               user.setStatus(1);
               user.setName(RandomName.randomName(true,3));
               userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //如果用户登录成功，就删除redis中的缓存验证码
            redisTemplate.delete(phone);
            return R.success(user);
        }
        return R.error("登录失败");
    }

    /**
     * 用户退出
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request){
        //清理员工session中保存的id
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }
}
